Clearing the way forward to zero-zero operations

FAA and EASA execs, test pilots, scientists and engineers move closer to EFVS 0/0 landings.

(L–R) EFVS/SVS Specialists Glenn Connor (DTI), Mark Schlegel (Bombardier), Thierry Bonfils (Thalès), SVS Working Group 1 Chairman Dave Domino, David Gallezot (Thalès), Tony Barber (Bombardier) and Mark Bouliane (Esterline CMC Electronics).

For some, however, the lingering doubt remains—can a pilot land an aircraft using a video image? A good question 30 years ago, answered with abundant flight tests by FAA and NASA and more than 1000 system operators in service today. There must be something to it.

Landing in limited visibility with EFVS (top L) and as seen by the pilot through the HUD during an approach (top R). EFVS operations may also be soon expanded for taxiing in low visibility, as seen here (bottom L), including the ability to see vehicles (bottom R).





Recent rules and procedures for vision systems

Credit for Enhanced Flight Vision Systems FAR 91.175/ 121.651—published 2004

ICAO EFVS: Draft for EVS Operations—completed 2006

Approach/Visibility Credit for EFVS in Europe: EU OPS Subpart E—published Jul 2008

RTCA DO 315 and EUROCAE ED 178: EFVS, SVS and Combined Vision Systems Standards—published Dec 2008

FedEx/NetJets Exemptions for Approach Credit—notice published 2008, in process for 2010

New Advisory Circular 20: EFVS—draft published 2009, final expected 2010

FAA EFVS Revisions for Landing with 1000 ft RVR or 1/4 Mile Reported—expected by 2010

Glenn Connor is the president of Discover Technology Intl and is a researcher and pilot specializing in the development of enhanced vision systems and advanced avionics.




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